WC Circulation
Door Circulation
≥ 300AS 1428.1:2021, 12.6
All dimensions from
finished surface
If no baby change table & door clearance allows
All dimensions from finished surface
Allow more for
deeper basins
Basin Circulation
Wash Basin Installation
450 to 460AS 1428.1:2021, 12.2.2
WC Installation
450 to 460AS 1428.1:2009, 15.2.2
Wash Basin Installation
All dimensions from finished surface
≥ 1.9mAS 1428.1:2009, 15.2.8.1
≥ 1.9mAS 1428.1:2009, 15.2.8.1
All Building Classes
NCC 2022 F4D5 [2019 F2.4]
May 2023
All Building Classes
NCC 2022 F4D5 [2019 F2.4]
May 2023
All Building Classes
NCC 2022 F4D5 [2019 F2.4]
May 2023
Door Circulation
WC Circulation
Allow more for
deeper basins
All Building Classes
NCC 2022 F4D5 [2019 F2.4]
May 2023
If no baby change table & door clearance allows
All Building Classes
NCC 2022 F4D5 [2019 F2.4]
May 2023
WC Installation
≥ 2.3mAS 1428.1:2009, 15.2.8.1
≥ 2.63mAS 1428.1:2009, 15.2.8.1
All dimensions from
finished surface
Basin Circulation
Exclusion Zone